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Payment rails for AI agents. Pay merchants in USDC on Base. Dual-protocol: x402 + OKX APP.
Coal — Payments for AI agents is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 67/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding Coal — Payments for AI agents to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
mcp add io.github.emmanuel39hanks/coal https://mcp.usecoal.xyz/api/mcpReview the upstream source before running this command.
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-05-07T14:00:33.260438Z",
"publishedAt": "2026-05-07T14:00:33.260438Z",
"statusChangedAt": "2026-05-07T14:00:33.260438Z"
}
},
"server": {
"name": "io.github.emmanuel39hanks/coal",
"title": "Coal — Payments for AI agents",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://mcp.usecoal.xyz/api/mcp",
"type": "streamable-http",
"headers": [
{
"name": "X-Coal-Agent-Key",
"isSecret": true,
"description": "Wallet private key (0x... 64-char hex). Signs payments via EIP-3009 on Base. Optional — read-only tools work without it."
},
{
"name": "X-Coal-Api-Key",
"isSecret": true,
"description": "Coal API key for create_checkout + query_merchant_memory. Get one at https://usecoal.xyz/console/keys. Optional."
}
]
}
],
"version": "1.3.0",
"repository": {
"url": "https://github.com/emmanuel39hanks/coal",
"source": "github",
"subfolder": "examples/coal-mcp-server"
},
"websiteUrl": "https://usecoal.xyz",
"description": "Payment rails for AI agents. Pay merchants in USDC on Base. Dual-protocol: x402 + OKX APP."
}
}